Quarterly report [Sections 13 or 15(d)]

Summary of Stock Option Activity (Details)

v3.26.1
Summary of Stock Option Activity (Details) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]    
Number of Shares, Beginning Balance 100,360  
Weighted Average Exercise Price, Beginning Balance $ 24.66  
Weighted Average Grant Date Fair Value, Beginning $ 23.42  
Weighted Average Remaining Contractual Term (Years), Outstanding 8 years 9 months 18 days 9 years 10 months 20 days
Aggregate Intrinsic Value, Beginning Balance  
Number of Shares, Granted 267,500  
Weighted Average Exercise Price, Granted $ 4.95  
Weighted Average Grant Date Fair Value, Granted $ 4.14  
Weighted Average Remaining Contractual Term (Years), Granted 8 years 6 months 25 days  
Aggregate Intrinsic Value, Granted $ 1,200  
Number of Shares, Exercised  
Weighted Average Exercise Price, Exercised  
Weighted Average Grant Date Fair Value, Exercised  
Number of Shares, Forfeited (259)  
Weighted Average Exercise Price, Forfeited $ 4,980.00  
Weighted Average Grant Date Fair Value, Forfeited $ 4,710.00  
Weighted Average Remaining Contractual Term (Years), Forfeited 6 years 11 months 8 days  
Number of Shares, Canceled/Expired (50)  
Weighted Average Exercise Price, Canceled/Expired $ 4,980.00  
Weighted Average Grant Date Fair Value, Canceled/Expired $ 4,710.00  
Weighted Average Remaining Contractual Term (Years), Canceled/Expired 6 years 11 months 8 days  
Number of Shares, Ending Balance 367,551 100,360
Weighted Average Exercise Price, Ending Balance $ 6.15 $ 24.66
Weighted Average Grant Date Fair Value, Ending $ 5.45 $ 23.42
Aggregate Intrinsic Value, Ending Balance $ 1,200
Number of Shares, Exercisable 208,176  
Weighted Average Grant Date Fair Value, Exercisable $ 6.95  
Weighted Average Exercise Price, Exercisable $ 6.50  
Weighted Average Remaining Contractual Term (Years), Exercisable 8 years 2 months 19 days  
Aggregate Intrinsic Value, Exercisable